package com.lai.gulimall.product.service.impl;

import com.lai.gulimall.product.entity.AttrEntity;
import com.lai.gulimall.product.service.AttrService;
import com.lai.gulimall.product.vo.AttrGroupWithAttrsVo;
import com.lai.gulimall.product.vo.SkuItemVo;
import com.lai.gulimall.product.vo.SpuItemAttrGroupVo;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.lai.common.utils.PageUtils;
import com.lai.common.utils.Query;

import com.lai.gulimall.product.dao.AttrGroupDao;
import com.lai.gulimall.product.entity.AttrGroupEntity;
import com.lai.gulimall.product.service.AttrGroupService;


@Service("attrGroupService")
public class AttrGroupServiceImpl extends ServiceImpl<AttrGroupDao, AttrGroupEntity> implements AttrGroupService {


    @Autowired
    AttrService attrService;


    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<AttrGroupEntity> page = this.page(
                new Query<AttrGroupEntity>().getPage(params),
                new QueryWrapper<AttrGroupEntity>()
        );

        return new PageUtils(page);
    }

    @Override
    public PageUtils queryPage(Map<String, Object> params, Long catelogId) {
        String key = (String) params.get("key");
        //QueryWrapper<"要查询那张表就写哪个实体类">()
        QueryWrapper<AttrGroupEntity> wrapper = new QueryWrapper<AttrGroupEntity>();
        //select * from pms_attr_group where catelog_id = ? and (attr_group_id = key or attr_group_name like "?" or descript like "?" ...)
        if (!StringUtils.isEmpty(key)) {//如果key不为空
            //and
            wrapper.and((obj) -> {
                //查询 分组id = 传入的id  并且 模糊查询 组名
                obj.eq("attr_group_id", key).or().like("attr_group_name", key);
            });
        }


        if (catelogId == 0) {
            IPage<AttrGroupEntity> page = this.page(new Query<AttrGroupEntity>().getPage(params),
                    new QueryWrapper<AttrGroupEntity>());
            return new PageUtils(page);
        } else {
            wrapper.eq("catelog_id", catelogId);
            IPage<AttrGroupEntity> page = this.page(new Query<AttrGroupEntity>().getPage(params),
                    wrapper);
            return new PageUtils(page);
        }

    }

    @Override
    public List<AttrGroupWithAttrsVo> getAttrGroupWithAttrsByCatelogId(Long catelogId) {
        //1、根据分类id查出当前分类下的所有属性分组
        List<AttrGroupEntity> attrGroupEntity = this.list(new QueryWrapper<AttrGroupEntity>().eq("catelog_id", catelogId));

        //2、根据每个属性分组id查出所有属性
        List<AttrGroupWithAttrsVo> collect = attrGroupEntity.stream().map(group -> {
            AttrGroupWithAttrsVo attrsVo = new AttrGroupWithAttrsVo();
            BeanUtils.copyProperties(group, attrsVo);
            List<AttrEntity> attrs = attrService.getRelationAttr(attrsVo.getAttrGroupId());
            attrsVo.setAttrs(attrs);
            return attrsVo;
        }).collect(Collectors.toList());


        return collect;
    }

    @Override
    public List<SpuItemAttrGroupVo> getAttrGroupWithAttrsBySpuId(Long spuId, Long catalogId) {
        List<SpuItemAttrGroupVo> vos = baseMapper.getAttrGroupWithAttrsBySpuId(spuId, catalogId);
        return vos;
    }

}